KYN metal-clad medium voltage switchgear

metal-clad medium voltage switchgear

I Product type:
KYN28-12

II General
metal-clad medium voltage switchgear is a set of power distribution device of rated voltage 3 to 12KV three-phase AC 50Hz of single bus bar and single bus bar segmental system. It is applicable to power transmission of the power plant, power receiving and distribution of the electric system and the substation of the industrial enterprises to fulfill the aims of control, protection and inspection.

III Use condition
Environment temperature: -15°C to +40°C
Relative humidity: daily average ≤95% monthly average≤90%
Height above sea level: ≤1000m
Earthquake magnitude ≤8
No fire, explosion danger, serious pollution, or chemical erosion occasion.

III Main characteristics
The structure of the cabinet is bolt by aluminum zinc alloy board after the process of CNC machine tool and multi bending technology;
All the operation can be done after the cabinet door is closed;
High protection degree, protect the intruder of sundries and pests;
Simple and effective “five-prevention” lock function, protect error operation;
Can adopt VS1 and CD4 vacuum circuit breaker;
Easy replacement of the circuit breaker and free exchange of the drawers;
The cabinet can be installed by the wall, maintenance in the front, which reduces the floor space;
Large space of the cable room can connect many cables;
The relay room and the cable room can respectively add a heater to avoid freezing or erosion.

IV Major technical parameters
Major technical parameters of vacuum switchgear
No.
Name
Unit
Data
1
Rated Voltage
KV
3,6,10
2
Rated Current
A
630,1000,1250,1600,
2000,2500,3150
3
Rated Frequency
Hz
50
4
Rated short-time tolerant voltage
kA
20, 25, 31.5, 40
5
Rated peak tolerant voltage
kA
50, 63, 80, 100
6
Rated power frequency tolerant voltage
Inter-polar /polar to ground
kV
42/1min
Inter-fracture
kV
48/1min
7
Rated lightening shock tolerant voltage
Inter-polar /polar to ground
kV
75
Inter-fracture
kV
85
8
Rated lasting time of short-circuit
s
4
9
Protection degree

Shell IP4X, interval room IP2X


KYNCQC
KYN28-12 2
14
20
packing